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Plenum to runner Hi-flow gaskets

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Old May 7, 2018 | 02:06 PM
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EDGE's Avatar
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From: Mississauga, Ontario Canada
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Plenum to runner Hi-flow gaskets

Where does one find the plenum to runner gaskets. I have the Edelbrock 3865 large runner. All the gasket kits come only with the runner to base gasket. Who does that? Stupidest thing I've ever seen. $70 for half the gaskets .Ridiculous. Anyway can the stock one be cut out enough?
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Old May 7, 2018 | 04:58 PM
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Re: Plenum to runner Hi-flow gaskets

You might look into mr gasket 146
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Old May 11, 2018 | 06:47 PM
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Re: Plenum to runner Hi-flow gaskets

Stock ones work fine, the runner ports are not bigger than the stock gasket bores. I just installed a set on mine.
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Old May 11, 2018 | 07:07 PM
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Re: Plenum to runner Hi-flow gaskets

Originally Posted by fullsize fun
Stock ones work fine, the runner ports are not bigger than the stock gasket bores. I just installed a set on mine.
In that case use mr gasket 145 or felpro MS93160

https://www.summitracing.com/parts/f...iABEgLJb_D_BwE

Last edited by Tuned Performance; May 12, 2018 at 11:19 AM.
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Old May 13, 2018 | 07:22 PM
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Re: Plenum to runner Hi-flow gaskets

You can get a larger port set from tpis.
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Old May 13, 2018 | 08:09 PM
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From: Shelby,N.C.
Car: 1986 pontiac bonneville
Engine: LB9 305
Transmission: MK6 T5
Axle/Gears: 3.42
Re: Plenum to runner Hi-flow gaskets

I just installed a brand new set of NIB edelbrock Hi flo runners , stock gaskets where plenty big.
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